Navigate to the person’s name in your Friends list and open their Pattern page. (Note: You can only change a friend’s photo if they are a Custom Profile.)
Tap on “Edit Profile” toward the top right of the screen.
Tap “Profile Photo” at the bottom of the screen.
Tapping “Use This Photo” now will keep the profile picture the same; to choose a new photo, tap “Change Photo” then select “Take Photo” or “Choose from Library.”
